How to keep two decimal places in C language

In C language, to retain two decimal places, you can: declare a floating-point variable. Use the printf() function to print floating point variables. Use the %.2f format specifier in the format string.

How to retain two decimal places in C language

In C language, you can use printf () function and specify the decimal digit format to retain two decimal places.

Specific steps:

1. Use floating-point variables:
   Declare a floating-point variable to store decimals to be retained number.
2. Use the printf() function:
   Use the printf() function to print floating point variables.
3. Specify the decimal digit format:
   In the format string of the printf() function, use the %.2f format specifier. This will preserve two decimal places.

Sample code:

<code class="c">#include <stdio.h>

int main() {
  float number = 3.14159265;  // 浮点型变量
  printf("%.2f", number);  // 输出保留两位小数

  return 0;
}</code>

Output:

<code>3.14</code>

In this example, although number The value of the variable has 9 decimal places, but the printf("%.2f", number) statement will truncate the output to two decimal places, which is <code>3.14</code>.

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